OG-31和og-27题

elitist

27. Red blood cells in which the malarial-fever parasite resides are eliminated from a person’s body after 120days. Because the parasite cannot travel to a new generation of red blood cells, any fever that develops in a person more than 120 days after that person has moved to a malaria-free region is not due to the malarial
parasite. Which is the following, if true, most seriously weakens the conclusion above?
A. The fever caused by the malarial parasite may resemble the fever caused by flu viruses.
B. The anopheles mosquito, which is the principal insect carrier of the malarial parasite, has been eradicated in
many parts of the world.
C. Many malarial symptoms other than the fever, which can be suppressed with anti-malarial medication, can
reappear within 120 days after the medication is discontinued.
D. In some cases, the parasite that causes malarial fever travels to cells of the spleen, which are less
frequently eliminated from a person’s body than are red blood cells.
E. In any region infested with malaria-carrying mosquitoes, there are individuals who appear to be immune to
malaria.

题目点我找到了，就是120天之后红细胞没有了，发烧也消失了，正确答案是D,我觉得D说的是In some case ,而且说的是什么person's body ,不懂

31. Some who favor putting governmental enterprises into private hands suggest that conservation objectives would in general be better served if private environmental groups were put in charge of operating and financing
the national park system, which is now run by the government.
Which of the following, assuming that it is a realistic possibility, argues most strongly against the suggestion above?
A. Those seeking to abolish all restrictions on exploiting the natural resources of the parks might join the private environmental groups as members and eventually take over their leadership.
B. Private environmental groups might not always agree on the best ways to achieve conservation objectives.
C. If they wished to extend the park system, the private environmental groups might have to seek contributions
from major donors and general public.
D. There might be competition among private environmental groups for control of certain park areas.
E. Some endangered species, such as the California condor, might die out despite the best efforts of the
private environmental groups, even if those groups are not hampered by insufficient resources.
为什么选a,没有明确地方说明这个实事，我觉得E好点，E是举例说明上面的观点不对，

fdgggd

第一题，既然是削弱就只要找出一个反例就够了，所以in some case是很充分的一个条件
这题属于他因削弱

第二题，a没有错的，因为这样就表示出这个提议人是另有其他目的，这样他提出的意见自然也就是言不由衷咯，这样的一个反对是最有效的
而e中的这个咚咚和原文的反对没有什么关系，这个物种是否会死亡和公园由谁管根本就没有什么关系，更谈不上argues most strongly against the suggestion
原文的suggestion你再看清楚一下吧

多做两个这种削弱的题你应该会有一些感觉的

dhhgh11

27题我也看了好久，我觉得关键是这句话的理解。which are less frequently eliminated from a person’s body than are red blood cells，其中的less frequently，说明原文中120天是frequently，causes malarial fever travels to cells of the spleen也就是要比120天时间要长，这样就很明显原文中的结论说any fever that develops in a person more than 120 days after that person has moved to a malaria-free region is not due to the malarial，这个自然就削弱了。